refactor(devtools): removes unused classes (angular#60475)

These `cy-*` classes are not referenced in any styles and appear to be unused.

PR Close angular#60475

Author: dgp1130

devtools/projects/ng-devtools/src/lib/devtools-tabs/directive-explorer/property-tab/property-view/property-view-body.component.html

@@ -25,7 +25,7 @@
     @for (panel of panels(); track $index) {
       <div class="mat-accordion-content" cdkDrag>
         @if (panel.controls().dataSource.data.length > 0) {
-          <mat-expansion-panel [class]="panel.class" [expanded]="true">
+          <mat-expansion-panel [expanded]="true">
             <mat-expansion-panel-header collapsedHeight="25px" expandedHeight="25px">
               <mat-panel-title>{{ panel.title }}</mat-panel-title>
             </mat-expansion-panel-header>

devtools/projects/ng-devtools/src/lib/devtools-tabs/directive-explorer/property-tab/property-view/property-view-body.component.ts

@@ -48,17 +48,14 @@ export class PropertyViewBodyComponent {
     {
       title: 'Inputs',
       controls: () => this.directiveInputControls(),
-      class: 'cy-inputs',
     },
     {
       title: 'Outputs',
       controls: () => this.directiveOutputControls(),
-      class: 'cy-outputs',
     },
     {
       title: 'Properties',
       controls: () => this.directiveStateControls(),
-      class: 'cy-properties',
     },
   ]);